:root {
	color-scheme: light;
	--paper: #f8f6f1;
	--ink: #1c1e1f;
	--muted: #5f6668;
	--rule: #dcd8cf;
	--accent: #c2410c;
	--field: #efebe2;
	/* In rem, not ch: ch resolves against each element's font-size, so code at 0.875rem
	   would otherwise render narrower than body text. Opens with the viewport. */
	--measure: clamp(40.8rem, 60vw, 52.8rem);
	--measure-wide: clamp(76ch, 68vw, 104ch);
	font-family: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, 'Liberation Mono', monospace;
	/* 16px on ~1280px viewports, ramping to 18px on ~2560px high-density panels */
	font-size: clamp(1rem, 0.875rem + 0.15625vw, 1.125rem);
	font-variant-ligatures: none;
	line-height: 1.65;
	background: var(--paper);
	color: var(--ink);
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

body {
	margin: 0;
	overflow-wrap: anywhere;
}

::selection {
	background: var(--ink);
	color: var(--paper);
}

.site {
	max-width: 84rem;
	margin-inline: auto;
	padding-inline: clamp(1.25rem, 4vw, 3rem);
}

main {
	padding-block: 3rem 4rem;
}

h1,
h2,
h3,
p,
ul,
ol {
	margin: 0 0 1rem;
}

h1 {
	font-size: clamp(1.6rem, 6vw, 2.4rem);
	font-weight: 700;
	line-height: 1.15;
	letter-spacing: 0.01em;
	text-transform: uppercase;
}

/* Section rules: label on the left, hairline running to the right margin. */
h2 {
	display: flex;
	align-items: center;
	gap: 1.5ch;
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--accent);
	margin-bottom: 1.5rem;
}

h2::after {
	content: '';
	flex: 1 1 auto;
	height: 1px;
	background: var(--rule);
}

h3 {
	font-size: 1rem;
	font-weight: 700;
}

a {
	color: inherit;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.25em;
	text-decoration-color: var(--muted);
}

a:hover {
	color: var(--accent);
	text-decoration-color: currentColor;
}

:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 3px;
}

:target {
	scroll-margin-top: 2rem;
}

.skip-link {
	position: absolute;
	top: 0.5rem;
	left: 0.5rem;
	z-index: 1;
	padding: 0.5rem 1rem;
	background: var(--ink);
	color: var(--paper);
	transform: translateY(-200%);
}

.skip-link:focus {
	transform: translateY(0);
}

.eyebrow {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 0.5rem 2ch;
	margin-bottom: 1rem;
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--muted);
}

/* Wider pages put the manifesto against a sticky rail of record links. */
.hero {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 2.5rem;
}

.hero > * {
	min-width: 0;
}

@media (min-width: 900px) {
	.hero {
		grid-template-columns: minmax(0, 44rem) minmax(13rem, 17rem);
		justify-content: space-between;
		align-items: start;
		gap: 3rem 4rem;
	}
}

/* The manifesto sits inside a measured field: open corners above, the bound below. */
.manifesto {
	position: relative;
	padding-block: 2rem 2.75rem;
	border-bottom: 6px solid var(--accent);
}

.manifesto::before,
.manifesto::after {
	content: '';
	position: absolute;
	top: 0;
	width: 0.6rem;
	height: 0.6rem;
	border-top: 2px solid var(--accent);
}

.manifesto::before {
	left: 0;
	border-left: 2px solid var(--accent);
}

.manifesto::after {
	right: 0;
	border-right: 2px solid var(--accent);
}

.manifesto > h1 + ul {
	display: flex;
	flex-wrap: wrap;
	gap: 0.25rem 3ch;
	list-style: none;
	padding: 0;
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--muted);
}

.manifesto > hr {
	margin: 1.75rem 0;
	border: 0;
	border-top: 1px solid var(--rule);
}

.manifesto > hr + p {
	margin-bottom: 1.75rem;
	padding-left: 2.5ch;
	border-left: 3px solid var(--accent);
	font-size: 1.05rem;
	font-weight: 700;
}

.manifesto > p + ul {
	list-style-type: square;
	margin: 0;
	padding-left: 2.5ch;
}

.manifesto > p + ul > li {
	padding-left: 0.75ch;
	margin-bottom: 1rem;
}

.manifesto > p + ul > li::marker {
	color: var(--accent);
}

.manifesto > p + ul > li:last-child {
	margin-bottom: 0;
}

.bound-mark {
	display: flex;
	flex-wrap: wrap;
	justify-content: flex-end;
	align-items: baseline;
	gap: 0.25rem 2ch;
	margin: 0.4rem 0 0;
	font-size: 0.6875rem;
}

/* The digest is case-sensitive, so it cannot inherit the mark's uppercase styling. */
.bound-digest {
	font-size: inherit;
	text-transform: none;
	letter-spacing: normal;
	color: var(--muted);
}

.bound-label {
	text-transform: uppercase;
	letter-spacing: 0.2em;
	color: var(--accent);
}

.guidance {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 3.5rem;
	margin-top: 4.5rem;
}

#how > .reference-section {
	margin-top: 3.5rem;
}

#how h3 {
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--accent);
	margin-bottom: 1.25rem;
}

section p {
	max-width: var(--measure);
}

.commitment-grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 1.5rem;
}

.steps {
	list-style: none;
	counter-reset: step;
	padding: 0;
	max-width: var(--measure);
}

.steps li {
	position: relative;
	counter-increment: step;
	padding-left: 4ch;
	margin-bottom: 1.25rem;
}

.steps li::before {
	content: counter(step) '.' / '';
	position: absolute;
	left: 0;
	font-size: 0.8125rem;
	color: var(--accent);
}

.steps strong {
	display: block;
}

.section-body > :last-child {
	margin-bottom: 0;
}

code,
pre {
	font-family: inherit;
}

code {
	font-size: 0.9em;
}

/* Clicking any code block selects the whole thing, so it can be copied from the selection. */
pre {
	padding: 1.25rem 2ch;
	margin: 1.5rem 0;
	border: 1px solid var(--rule);
	border-top: 2px solid var(--accent);
	background: var(--field);
	font-size: 0.875rem;
	line-height: 1.6;
	white-space: pre-wrap;
	max-width: var(--measure-wide);
	user-select: all;
}

/* Matches the body text measure; the URL-safe base64 digest is short enough to fit. */
.commitment-template {
	max-width: var(--measure);
}

/* Fill each line to the edge rather than breaking after the URL scheme. */
.template-url {
	word-break: break-all;
}

pre code {
	font-size: inherit;
}

.site-footer {
	margin-top: 4.5rem;
	padding-block: 1.25rem 2.5rem;
	border-top: 1px solid var(--rule);
	color: var(--muted);
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

.site-footer p {
	margin: 0;
}

@media (max-width: 480px) {
	main {
		padding-block: 2.25rem 3rem;
	}

	.guidance {
		gap: 2.75rem;
		margin-top: 3rem;
	}

	.manifesto > p + ul {
		padding-left: 2ch;
	}

	.steps li {
		padding-left: 3.5ch;
	}
}

@media (prefers-color-scheme: dark) {
	:root {
		color-scheme: dark;
		--paper: #16181a;
		--ink: #e8e5de;
		--muted: #9ba1a4;
		--rule: #33383b;
		--accent: #f59e0b;
		--field: #1e2224;
	}
}

@media print {
	:root {
		color-scheme: light;
		--paper: #fff;
		--ink: #000;
		--muted: #333;
		--rule: #999;
		--accent: #000;
		--field: #fff;
		font-size: 10pt;
	}

	.site {
		max-width: none;
		padding: 0;
	}

	.site-footer,
	.skip-link,
	.bound-mark {
		display: none;
	}

	main {
		padding: 0;
	}

	.manifesto {
		padding-top: 0;
		border-bottom-width: 3px;
	}

	.manifesto::before,
	.manifesto::after,
	h2::after {
		display: none;
	}

	.manifesto > p,
	.manifesto > ul > li,
	pre {
		break-inside: avoid;
	}

	.guidance {
		break-before: page;
	}
}